Sunday, March 13, 2011

Adoption as a (less) repugnant transaction

You wouldn't think that adoption would sometimes be regarded as a repugnant transaction, i.e. as something that some people didn't want other people to do, but in fact there have in many times and places been laws and customs that prevent certain sorts of people from adopting certain other sorts of people, e.g. inter-racial or inter-ethnic or inter-religious adoptions of various sorts. (And of course there have also been restrictions barring certain kinds of couples, e.g. same sex couples, from any kind of adoption.)

The Telegraph reports that things are changing in England in this regard:

Adoption shake-up: new guidelines will stop 'social-engineering': "New adoption guidelines have been announced by the Government to break down the barriers faced by potential parents and children."

"Michael Gove, the Education Secretary, said some of the limitations put on adopters in the past - based on ethnicity, sexual orientation and faith - was ''social engineering of the worst kind''.
Outlining the adoption guidance being introduced, the minister said: ''At the moment, the system simply doesn't allow many of those people who are desperate to help the chance to give young people and children a loving home.
''It has always been the case unfortunately that far too many children are growing up in circumstances where sadly they won't have the architecture or stability that means they can achieve everything of which they are capable.''
The Government said progress in adoption has stalled in recent years, with the number of children placed for adoption falling by 15 per cent between March 2009 and 2010, and more children waiting longer to be adopted.
Black children took over 50 per cent longer on average to be placed for adoption than children from other ethnic groups, and children over five were four times less likely to be adopted compared to children under five in the last year.

Mr Gove said: ''What I do find difficult to accept is that we've created over time a web of rules that mean that we are not always putting the interests of children first.
''We all know that the length time which children spend in institutional care once they be been taken into care is far too long, when those children could be adopted by loving parents.''
He said the average amount of time children spend in care before being adopted is 21 months.
''One of the reasons that they sound so long is that for far too long, we have made an idea of the perfect the enemy of the good,'' he said.
Speaking about the barriers faced by adopters previously, he said: ''We said that this particular couple can't adopt because, in the past, they might have the wrong sexuality, they might even have the wrong ethnic background.
''It could be that they're too young, it could be that their social background doesn't make for perfect match. That sort of thinking is social engineering of the worst kind.''

Saturday, March 12, 2011

Twelve international criminal markets

I'm not confident of the data, but numbers one and two are drugs and human trafficking, and number five is human organs.
This from Transnational Crime In The Developing World: A February 2011 Report from Global Financial Integrity. The detailed report is here.

Roughly organized in terms of overall cash flow here is their list of goods illicitly traded across borders (the ordering depends not only on highly unreliable estimates, but on how the categories are aggregated...).
  1. Drugs
  2. Human trafficking
  3. Illicit wildlife
  4. Counterfeit goods and currency ("If imitation is the sincerest form of flattery, counterfeiting is the criminal form.")
  5. Human organs (my worries about data sources are compounded by noting that their figures for legal US transplants come from a 2008 article in the Economist, rather than e.g. from UNOS/OPTN data, which is easily available on the web)
  6. Small arms
  7. Diamonds
  8. Oil
  9. Timber
  10. Fish
  11. Art and artifacts
  12. Gold
From the executive summary:
"This report analyzes the scale, flow, profit distribution, and impact of 12 different types of illicit trade: drugs, humans, wildlife, counterfeit goods and currency, human organs, small arms, diamonds and colored gemstones, oil, timber, fish, art and cultural property, and gold. Though the specific characteristics of each market vary, in general it can be said that these profitable and complex criminal operations originate primarily in developing countries, thrive in the space created by poverty, inequality, and state weakness, and contribute to forestalling economic prosperity for billions of people in countries across the world.

"The global illicit flow of goods, guns, people, and natural resources is estimated at approximately $650 billion. Though data is scarce and experts are constantly debating the relative merits and weaknesses of every new study, it is generally accepted that illicit drug trafficking and counterfeiting are the two most valuable markets. This report finds the illicit drug trade to be worth roughly $320 billion and counterfeiting $250 billion. These numbers reflect the potential for huge profits which is
the fundamental driver of criminal trade."

HT: Bettina Klaus

Friday, March 11, 2011

Unraveling in the war for new private equity talent

Kevin Roose at Dealbook writes of A Grab for Wall Street’s Rising Stars Before They’ve Risen

"Some of the world’s largest private equity firms are in a tug of war over top talent. But the competition isn’t over brand-name executives commanding eight-figure salaries. Instead, firms are fighting for the affections of bankers barely old enough to rent cars.

"This month starts the private equity recruiting season, an annual Wall Street ritual in which young analysts from leading investment banks like Goldman Sachs and Morgan Stanley are wined and dined by Kohlberg Kravis Roberts, the Blackstone Group, TPG Capital and a handful of other top-flight firms. The industry is gearing up earlier than ever this year, with some firms already making offers for jobs that won’t start until the fall of 2012, a full 18 months from now.

Five years ago, it happened in September, then July, then May, then April. This year, it’s March,” said a senior partner at a large private equity firm, who spoke on the condition of anonymity because he was not authorized to comment on the hiring process.

Young analysts typically fulfill two-year contracts at their banks before making the switch to the more prestigious, higher-paid world of private equity. It’s a common move often referred to as “two and out.” Many of these analysts, referred to as “pre-M.B.A. hires,” are contacted by private equity firms only months into their first post-collegiate jobs, and some are as young as 22.

“There is a shortage of stars, and that gives a strong incentive for a given firm to be the first,” said Adam Zoia, chief executive of Glocap Search, whose clients include leading private equity firms. “But everyone sensible — the clients, the banks, the candidates — believes it’s in no one’s interest to start this early.”

"Top firms have traditionally made informal agreements to synchronize their recruiting drives. It is a delicate monthlong dance that can include cocktail hours, meet-and-greets with executives and interview marathons sometimes referred to as “Super Saturdays.” This year, many of the largest firms scheduled events in April, approximately the same time as last year.

"But in early March, word spread that Bain Capital, the $65 billion private equity firm, was holding interviews and making offers to top candidates, according to several people familiar with the matter. Bain’s competitors — some of which moved early in previous years — were forced to scramble. They quickly rearranged schedules and, in some cases, canceled planned recruiting events in order to make their offers as soon as this week.

Every year, we talk to the other private equity firms and actually pretend we have a vested interest in being reasonable about this,” said a private equity executive who oversees his firm’s hiring efforts. “And every year, some jerk kicks off the process a month early.” The executive, who also spoke on the condition of anonymity to avoid angering rival firms, called the analyst recruiting process “one of the last vestiges of completely rogue behavior” in the well-heeled world of private equity.

"Bain declined to comment.

"The early recruiting process has serious limitations. Private equity firms are essentially wooing young analysts with less than a year’s experience, giving them little time to learn crucial skills like building complex financial models to value companies. Few have also received the annual performance reviews necessary for identifying top talent.

The kids we’re talking to got out of college last summer, spent six months in training, entered the job in January, and have done exactly nothing since then,” the executive said. “So we’re asking them about their transaction experience, and they’re talking about what fraternity they were in.”
...
"Competition is fierce. According to industry insiders, more than a thousand analysts are expected to apply for perhaps 50 spots at the largest buyout firms this year. Coming from a so-called target group can help an analyst’s chances — Goldman Sachs’s technology, media and telecom group and Morgan Stanley’s mergers and acquisitions group are thought to be the cream of the crop — but there are no guarantees.
...
"In perhaps the clearest sign that the recruiting frenzy has hit a boiling point, several smaller private equity firms have hired star students or well-connected ones straight out of college. Industry experts say they don’t expect that trend to spread to mega-firms like K.K.R. and Blackstone. But even longtime private equity players, like the executive managing his firm’s hiring process, admit that the competition has made anything possible.

It’s a land grab,” the executive said. “And it’s a land grab for completely undeveloped property.”

HT: Eric Budish, the market design guy at Chicago, who writes "Back in my former life as a wall street guy this recruiting process was in spring of the second year (of a two year gig... )

Thursday, March 10, 2011

More on random graph models of kidney exchange

A new paper by Panos Toulis and David Parkes explores random graph models of kidney exchange: A Random Graph Model of Kidney Exchanges: Efficiency, Individual-Rationality and Incentives

Abstract:
"In kidney exchanges, hospitals share patient lists and receive transplantations. A kidney-paired donation (KPD) mechanism needs to promote full sharing of information
about donor-patient pairs, and identify a Pareto efficient outcome that also satisfies participation constraints of hospitals. Random graph theory is applied to the kidney exchange problem to provide a two-fold benefit: early experimental results can be explained analytically, and complex models with participation of multiple hospitals can be studied in terms of incentives in a methodological way. In this paper, we introduce a random graph model of the KPD exchange and then fully characterize the structure of the efficient outcome and the expected number of transplantations that can be performed. We derive a square-root law between the welfare gains from sharing patient-donor pairs in a central pool and the individual sizes of hospitals, which also illustrates the urgent need for the nationwide expansion  of such programs. Finally, we establish through theoretical and computational analysis that enforcing simple individual rationality constraints on the outcome can mitigate the negative impact of strategic behavior by hospitals."

While they consider only two-way exchange, their results parallel those obtained in the random graph model that Itai Ashlagi and I wrote about in Ashlagi, Itai and Alvin E. Roth, "Individual rationality and participation in large scale, multi-hospital kidney exchange," working paper, January 2011.

One of the developments it has been exciting to witness is the increasingly interdisciplinary work on kidney exchange, which now involves surgeons, economists, operations researchers and computer scientists. Here at Harvard, a lot of the connection to computer science comes through David Parkes, Yileng Chen, and the EconCS group.

I enjoyed speaking at the interdisciplinary seminar run by the Center for Research on Computation and Society (CRCS, pronounced "circus"). You can see my talk on the CRCS video site, ordered by dates, Monday, September 20, 2010: Alvin Roth on Kidney Exchange. From about 27 minutes to 13 minutes from the end (if you get that far, it's an 85 minute video:), you can hear me start to talk about some of the issues explored in these two papers.

Wednesday, March 9, 2011

Kidney exchange software

Itai Ashlagi has made available some of the  kidney exchange software (for both cycles and chains) that we used in two recent papers.

He writes: "To use
(i) one should have cplex and
(ii) please cite


The software either generates simulated patient/donor pairs as well as a compatibility matrix, or alternatively gets as an input such data. It finds an allocation that maximizes the number of transplants using cycles and chains each of a different bounded length. (Chains begin with non-directed donors.)"

Itai has also created a video abstract of the second paper above, about incentives for participation in large scale kidney exchange:

Tuesday, March 8, 2011

Medical progress in the last 200 years

MASSACHUSETTS GENERAL HOSPITAL AT 200
(the Legislature created Mass. General on Feb. 25, 1811, but it didn’t open to patients until a decade later.)

"When Massachusetts General Hospital opened in 1821, most patients were required to apply in writing for admission. They could be turned away for “bad morals’’ — and discharged for spitting, drinking, smoking, or swearing. Patients who followed the rules stayed for two months on average at an all-inclusive daily rate of 43 cents.

"They endured hemorrhoid and cataract surgery and amputations without anesthesia — assistants held them down, and sometimes they got opium and brandy for pain. Patients seeking treatment of broken legs or arms died as often as they went home."

I'm hopeful that equally big gains will be made in the next 200 years, so that much of today's medicine will look primitive in retrospect.

In particular, of interest to readers of this blog who have been following the great advances made in the past half dozen years in kidney exchange, I hope the time will come soon when that will seem a primitive stopgap, replaced by e.g. xenotransplants or even stem cell therapy to help patients grow new kidneys, not to mention cures for diabetes and other causes of kidney failure...

Monday, March 7, 2011

Non-simultaneous kidney chains are getting longer

Mike Rees' revolution in non-simultaneous extended altruistic donor (NEAD) chains continues to grow in importance in kidney exchange. Since the 2009 NEJM paper reporting the first NEAD chain, which accomplished 10 transplants (and therefore required 20 surgeries, ten of them nephrectomies), chains have been getting both more frequent and often longer.

The venerable transplant center at the University of Pittsburgh reports its recent involvement in a long chain:
A UPMC First: Transplant Team Participates In Large Multi-State Kidney Chain Involving 32 Operations and 16 Transplants
"The paired kidney exchange, coordinated by the National Kidney Registry, involved 32 patients and 16 transplants performed at 12 U.S. hospitals over two months. It marked the first time that UPMC participated in a kidney chain."

The National Kidney Registry is one of the relatively nimble networks that, following the New England Program for Kidney Exchange, and Rees' Alliance for Paired Donation, have grown by recruiting sometimes overlapping networks of transplant centers.
Sean Hamill at the Pittsburgh Post Gazette gives the story a competitive angle by contrasting the NKR with the national exchange that is slowly gearing up (emphasis added, on which I'll comment after):


"This most recent chain started Dec. 17, 2010, and by the time it ended Feb. 11 it involved 16 donors and 16 recipients at 12 transplant centers in nine states from New York to California. Mr. Johnson's transplant and Ms. Dolezal's kidney removal both took place Feb. 10 in Pittsburgh and both of them are doing well.
...
"A national program that could push the number of paired donations from nearly 400 last year nationally to 3,000 or more a year has been the dream for the last half decade. That's significant when 93,000 people are on the national waiting list for kidneys and only about 17,000 a year get transplants

"Last fall, the United Network for Organ Sharing, an organization that oversees the nation's organ and transplant network, finally began its long-awaited pilot program that will attempt to do just that and link all of the eligible patients from the nation's more than 200 transplant centers.

"But Garet Hil, founder and president of the National Kidney Registry in Babylon, N.Y., which organized the 32-person chain, said UNOS's pilot program "is a failure."

"Mr. Hil, who runs a consulting and software development company, sits on the Kidney Paired Donation Pilot working group that has been trying to make the program work.

"I've witnessed a program with a flawed design, working in a bureaucratic way that's not going to get many people transplanted," he said Friday in a phone interview. "The program has been out since October and it's only done two transplants and we've done 60 since then -- including this chain" of which UPMC was a part.
...
"He has a host of criticisms with the pilot program, including that it allows only small chains that would give just two or three people new kidneys at a time, while the National Kidney Registry runs chains, like this recent one, where dozens of people get new kidneys.

"Ken Andreoni, an Ohio State University transplant surgeon who chairs UNOS's kidney committee, has heard Mr. Hil's arguments and concerns before and he believes he's just being too impatient.

"I'm in this for the 50-year- and 100-year-long issues," he said, adding that they will take time to solve.

"He concedes the pilot program is slowed by the bureaucracy of having to follow rigid rules that aim to maximize successful transplants and minimize risk.

"But that's the price you pay when you're creating what is to be a real national program that answers to everyone, unlike Mr. Hil's registry.

"The pilot program has had a difficult time because, first, the patients who have signed on are typically the most difficult patients to match, with significant variables that make them hard to match.

"And while UNOS would love to run long chains like the registry, currently it believes that shorter, two- and three-person-paired chains are safer because they're less complicated, Dr. Andreoni said.

"He doesn't see it as the competition Mr. Hil does.

"In the end, if you get people off the waiting list, that's great," Dr. Andreoni said, "no matter who is doing it."

*******
About the controversy about long versus short chains, the concerns about long chains are based in part on a modeling error, see this earlier post: Nonsimultaneous kidney exchange chains produce more transplants than simultaneous chains

And the issue about having only hard-to-match patients enrolled so far in the national exchange, that is likely to be a problem that will need to be addressed at a fairly fundamental level, because the current incentives make that a tempting strategy for transplant centers. See this earlier post: Kidney exchange when hospitals are the players

Finally, regarding time horizons, I sure hope that in 50 and 100 years we'll have better cures for kidney disease than transplantation. But for the next 10 or 20 it's likely to be the best solution by far for patients with end stage renal disease, and so we'd better keep figuring out how to make the best use of it.

Sunday, March 6, 2011

Marketplace for retired economists

The AEA is attempting to make another part of the job market thick: it is linked from the main JOE page at  http://www.aeaweb.org/joe/

Here is the direct link.

Available Retired Faculty Listing: "As an experiment, the AEA is initiating a listing of retired economists who may be interested in teaching on either a part-time or temporary basis. Individuals can add or delete their name at any time during the year. The listing will be active from February 1 through November 30 each year. Listings will be deleted on November 30; the service will be closed during December and January, re-opening on February 1."


Right now the list is waiting to be populated by retired faculty seeking part time or temporary work.

Saturday, March 5, 2011

The state of economic theory

Jeff Ely at Cheap Talk reviews the state of economic theory and lists four positive signs (among them a plug for market design):
  1. Theorists have been recruiting targets for high-profile private sector jobs.  Michael Schwarz and Preston McAfee at Yahoo!, Susan Athey at Microsoft for example.  In addition the research departments in these places are full of theorists-on-leave.
  2. Despite some overall weakness, theory is and always has been well represented at the top of the junior market.  This year Alex Wolitzky, as pure a theorist as there is, is the clear superstar of the market.  Here is the list of invitees to the Review of Economics Studies Tour from previous years.  This is generally considered to be an all-star team of new PhDs in each year.  Two theorists out of seven per year on average.  (No theorist last year though.)
  3. In recent years, two new theory journals, Theoretical Economicsand American Economic Journal:  Microeconomics, have been adopted by the leading Academic Societies in economics.  These journals are already going strong.
  4. Market design is an essentially brand new field and one of the most important contributions of economics in recent years.  It is dominated by theorists.

HT to Eric Budish, who is one of those guys Ely has in mind...

Friday, March 4, 2011

Matching conference at Northwestern

Thursday, March 3, 2011

Microeconomics and Market Design at Yahoo!

Microeconomics and Market Design  By Michael Schwarz and David Reiley



  • What are the effects of complexity in mechanism design? Participating in an auction mechanism (or any market institution) requires time and effort on the side of the buyers. That in turn may lead some buyers to bid very conservatively, or not to participate at all, in order to economize on effort. We lack a theory for quantifying the complexity of a mechanism.
  • Auction theory and matching theory offer models and algorithms for allocating goods or matching market participants. However, the majority of markets do not use structured mechanisms (such as auctions and matching algorithms). Why are some markets (such the medical residency match) using centralized matching procedure while other markets (such as the purchases of automobiles with various options packages) do not? Answering this question may help to design structured market mechanisms for the markets where chaotic negotiations rule the day.
  • Understanding when and how reputations emerge, and how to improve the designs of structured reputation systems. Reputations of individuals and businesses play an important role in economic and personal life. With some exceptions, most notably in electronic commerce, the mechanisms for accumulating reputation are informal rather than structured.
  • How should a firm set posted prices for a menu of products? Although economics offers a theoretical framework for how to set prices, most theory assumes omniscience about demand. To build a practical pricing engine, one needs a system that generates exogenous price variation and then uses it to calculate appropriate prices going forward. Yahoo! offers thousands, even millions, of different advertising products, so estimating a demand system suffers from the curse of dimensionality as well as practical constraints (perceived fairness, etc.) in generating price variation. We are looking for better theory and econometrics for the problem of building a pricing engine.

This is part of Yahoo!'s Key Scientific Challenges Program, about which they say
"We invite PhD students working in each of our core research areas to review the challenges listed below and submit an application between January 24th - March 11th, 2011 to be considered for the Key Scientific Challenges Program."



Program Award Benefits

  • $5,000 unrestricted research seed funding which can be used for conference fees and travel, lab materials, professional society membership dues, etc.
  • Exclusive access to select Yahoo! datasets
  • The unique opportunity to collaborate with our industry-leading scientists
  • An invitation to this summer's exclusive Key Scientific Challenges Graduate Student Summit where you'll join the top minds in academia and industry to present your work, discuss research trends and jointly develop revolutionary approaches to fundamental problems





HT: Noam Nisan at AGT

Wednesday, March 2, 2011

NPR On Point discusses kidney allocation proposals

The On Point show at National Public Radio has a broadcast on the pros and cons of the recent proposal to change the allocation of deceased donor kidneys, to take more account of age.


Guests:
Rob Stein, health reporter for the Washington Post. Read his article “Under kidney transplant proposal, younger patients would get the best organs.”
Kenneth Andreoni, professor of surgery at Ohio State University and chair of the Kidney Transplantation Committee, which is reviewing kidney organ procurement, distribution, and allocation for the United Network of Organ Sharing.
** See the full “concept document” and submit your comments.
Lainie Friedman Ross, professor and associate director of the MacLean Center for Clinical Medical Ethics at the University of Chicago.
Arthur Caplan, professor and director of the Center for Bioethics at the University of Pennsylvania.

Lainie Ross worries about the effect of this change on the incentives for live donation (starting just before minute 10). 

Tuesday, March 1, 2011

The special (Medicare) status of kidney disease

Special Treatment — The Story of Medicare’s ESRD Entitlement
NEJM, February 16, 2011, by Richard A. Rettig, Ph.D.

"In October 1972, Medicare, which had been enacted for the elderly in 1965, was extended to the disabled by the Social Security Amendments. One provision, added at the last minute, declared that persons with chronic renal disease who required hemodialysis or kidney transplantation “shall be deemed to be disabled” for purposes of Medicare Parts A and B. To be eligible for this Medicare coverage, patients had to have paid into the system long enough to be “fully or currently insured” under Social Security or be the spouse or dependent child of someone who was. This near-universal Medicare entitlement for end-stage renal disease (ESRD) has now been in effect for nearly 40 years.
...
In 2008, there were more than 112,000 new patients with ESRD in all eligibility categories (elderly, disabled, and ESRD-only). There were approximately 548,000 U.S. patients undergoing dialysis at the end of 2008, but many of them were not covered by Medicare, either because they had not yet fulfilled the initial waiting period or because they had received transplants and their coverage had ceased after 3 years. Medicare expenditures for ESRD in 2008 were $26.8 billion for Parts A and B. Non-Medicare expenditures for ESRD (covered by employer-sponsored group health plans or paid directly by patients) added another $12.7 billion, for total national expenditures of $39.5 billion.1 According to an analysis by the U.S. Renal Data System, ESRD beneficiaries represented 1.3% of all Medicare beneficiaries and used 7.9% of Medicare expenditures.
...
"So how was it that full coverage for treatment of one specific disease became enshrined in U.S. law? The story began during World War II, in Nazi-occupied Holland, where Willem Kolff invented the artificial kidney; after a visit by Kolff to the United States in 1947, a modified version of his machine was developed and used in Boston by John Merrill and colleagues at the Peter Bent Brigham Hospital. During the Korean War in the early 1950s, proof of concept was provided for treating acute renal failure with this Kolff–Brigham device. In 1960, Belding Scribner and Wayne Quinton, at the University of Washington Hospital in Seattle, invented an implanted arteriovenous shunt that made it possible for a patient to be connected to the machine repeatedly and ushered in the use of hemodialysis as a treatment for chronic renal failure. The shunt was later replaced by a subcutaneous fistula developed by the physicians Michael Brescia and James Cimino at the Bronx Veterans Administration (VA) Hospital.
...
" In Seattle, in response to financial limitations, access to dialysis was restricted through explicit rationing carried out by an anonymous lay committee — an approach that was laid bare for the American public in a Life magazine article in November 1962.2 Elsewhere, decisions limiting access to dialysis were tacitly incorporated into traditional medical decision making. Dialysis highlighted the tragic choices that had to be made when fundamental societal values encountered problems of scarcity.
...
"In November 1971, a patient received dialysis — albeit very briefly — at a hearing of the House Committee on Ways and Means. Many casual observers attribute the passage of the 1972 legislation to this event, overlooking the myriad other contributing developments. But the committee saw that the patient was a family man, in his prime working years, who could be rehabilitated and returned to gainful employment — with help from his government. Ultimately, the ESRD entitlement was added to Medicare because the moral cost of failing to provide lifesaving care was deemed to be greater than the financial cost of doing so."

Monday, February 28, 2011

New proposals for allocating deceased-donor kidneys

UNOS has put out a proposal for public comment: Concepts for Revising Kidney Allocation 

Here is a pretty good Washington Post story about it (with a slightly overstated headline): Under kidney transplant proposal, younger patients would get the best organs

"Instead of giving priority primarily to patients who have been on the waiting list longest, the new rules would match recipients and organs to a greater extent based on factors such as age and health to try to maximize the number of years provided by each kidney - the most sought-after organ for transplants.
...
"The ethically fraught potential changes, which would be part of the most comprehensive overhaul of the system in 25 years, are being welcomed by some bioethicists, transplant surgeons and patient representatives as a step toward improving kidney distribution. But some worry that the changes could inadvertently skew the pool of available organs by altering the pattern of people making living donations. Some also complain that the new system would unfairly penalize middle-aged and elderly patients at a time when the overall population is getting older.
...
"Under one scenario, for 80 percent of kidneys, patients 15 years older or younger than the donor would get higher priority. The remaining 20 percent of organs - those deemed to have the best chance of lasting the longest based on the age and health of the donor and other factors - would be given to recipients with the best chances of living the longest based on criteria such as their age, how long they've been on dialysis and whether they have diabetes.
...
"But others worry that the changes could reduce the overall number of organs available for transplants or inadvertently further shift the matches between organs and recipients by affecting living donors, who are not regulated by UNOS. Some relatives who would have donated a kidney to a young patient might now decide not to, for example, putting pressure on other relatives to donate kidneys to older family members. In addition, the changes would do nothing to address the wide variation in waiting times in different parts of the country.
"If we really want to improve things, we need to address the variation in access to transplants based on geography," Ross said. "This factor, more than any other, would increase the overall number of life years gained from kidney transplantation."
Some argued that a better solution would be to give recipients the option of choosing what donor kidneys to accept.
"Some younger people may accept a donor that is higher risk and may not last as long if they could get it sooner," said Richard Freeman, chairman of surgery at Dartmouth Medical School. "It should be more patient-based and less driven by absolute gain in life years."
Others questioned the formula that would be used to match patients and organs. Because the system would be more complicated, it could backfire by creating suspicions of cheating, eroding confidence and reducing organ donations.
"It works well enough the way it is, and everyone understands it, which is important to maintain the public trust," said Benjamin Hippen, a kidney specialist at Metrolina Nephrology Associates in Charlotte."

Sunday, February 27, 2011

A U.S. group dating site catches on in India

Jilted in the U.S., a Site Finds Love in India

"IN 2008, three young guys in Manhattan started Ignighter.com, a dating Web site focused on twentysomethings. They sought to set themselves apart by enabling members to set up group dates: One member, serving as a point person, could arrange a date — a movie, say, or a picnic in Central Park — with a group of other people and thereby take some of the awkward edge off of typical dates."
...

“In January 2010, we made the decision that we are an Indian dating site,” Mr. Sachs says. And now, with almost two million users — and 7,000 more signing up daily — Ignighter is considered India’s fastest-growing dating Web site.
"To put it another way, it gets as many users in a week in India as it did in a year in the United States. Next month, Ignighter will open an office in India and hire a dozen local employees. The company has stopped developing its American site, though it remains online.
...
"Ignighter, unlike the matrimonial sites, puts socializing and dating directly into the hands of young people. On most of the matrimonial sites, there’s a drop-down menu for “profile created for” — which includes son, daughter, brother, sister, relative or self. When it comes to Ignighter, “as far as we know, there are not a lot of parents on our site,” Mr. Sachs said.
Matrimonial sites thrive in India. Shaadi.com and others like Jeevansathi.com and Bharat Matrimony all have millions of users. The online matrimonial industry in India is estimated to generate $63 million a year in revenue and has tens of millions of registrants, according to EmPower Research, a market research firm.
“Dating sites have not succeeded in India,” says Gaurav Mishra of the MSL Group, a division of the marketing company Publicis Groupe. “It’s either been social networking sites or matrimonial sites.” Traditional dating sites, like Match.com, haven’t taken off in India. "

Saturday, February 26, 2011

"Likely letters" of admission and student athletes at Harvard

The Harvard Crimson describes one of the tools that Ivy League athletic coaches use to recruit student athletes. (The Ivy League faces some self-imposed restrictions, such as no athletic scholarships, that put it at a disadvantage compared to other schools when it comes to recruiting student athletes.)

For Some Athletes, An Early Notice
"In mid-October, when ambitious high school seniors are still anxiously toiling away at their Harvard College application, a select few already have received word of their likely acceptance.
...
"Every year, a group of approximately 200 recruited athletes are offered “likely letters” between Oct. 1 and March 15. While these letters technically do not guarantee an applicant admission to the College, admissions experts agree that a student who receives such a letter would only be denied admission in the most extreme circumstances.

“Barring a severe drop in grade, you can expect to get an offer,” said Penny Deck, an independent college counselor in Virginia.

"While the exact timeline for the recruiting process varies by sport, Harvard coaches say that they make their first contact the summer before a prospective athlete’s senior year of high school.

"From there, it is a hurried process where coaches evaluate a potential player in everything from athletic ability to character so that they can determine who they want to join their team.
...
"Beginning on Oct. 1, Harvard and its Ivy League counterparts can begin issuing likely letters to any of their applicants. While these letters are given to students for a variety of reasons, recruited athletes receive the majority early on in this period.

At Harvard and its Ivy peers, these letters are especially important.

Dave Galehouse, co-author of a guide for high school recruits titled “The Making of a Student Athlete”, said that Ivies are at a disadvantage because they do not offer special binding admissions decisions to student athletes.

According to Galehouse, the athletic programs at many other Division I institutions can essentially guarantee a student’s acceptance at their schools. He said he believes likely letters are a way to compensate for that disadvantage.

“It’s challenging for [Ivy League schools] because other schools can give notice earlier than we can,” said Ivy League Executive Director Robin Harris.


Since the elimination of early action*, Harvard has lost another tool to assure athletes—many of whom receive time-sensitive offers from other schools—that Harvard will admit them.

“Now that we don’t have our early action program, it’s very important to have likely letters,” said Harvard women’s volleyball coach Jennifer Weiss. “We’re still competing against schools that [do].”

“People are making decisions early. They can’t hold out a decision from Harvard until April,” said Weiss, the wrestling coach.

The Commitment Question

The Ivy League has minimal rules governing how its member institutions can utilize the likely letter, according to Harris. Still, the rules that exist are clear. While coaches may inquire as to a student’s level of interest, they cannot require a commitment or suggest that the applicant’s admission be contingent upon a commitment, according to the league’s website.

Dean of Admissions and Financial Aid William R. Fitzsimmons ’67 said that Harvard not only follows the rule, but takes the principle one step further.


“We don’t really ask them or inquire [whether they plan on coming]. It’s not an issue,” he said. “To have a likely be binding would be antithetical to our admissions philosophy.”


"Despite acknowledging the Ivy League policy of not requiring a commitment, Galehouse said that coaches do gauge interest levels before submitting their preferences to the admissions office.


“If coaches are going to go to bat for you, they want a pretty strong commitment,” he said of his understanding of the process in the Ivies. “You’re not really supposed to be going after likely letters from multiple schools. Coaches talk.”


"Fitzsimmons acknowledged that few recruited athletes who receive likely letters from Harvard end up attending other institutions.

“A pretty high percentage of the athletes end up coming,” he said, adding that the trend can be attributed to a bond that recruits feel to the coach or the institution, not because Harvard requires any sort of commitment.

“It’s up to them whether they keep their applications in elsewhere,” Fitzsimmons said. “We’ve certainly had athletes who received likelies who end up not coming.”

*but see yesterday's post on the return of early admissions to Harvard

Friday, February 25, 2011

Early admission returns to Harvard and Princeton

The Crimson reports that Harvard cares about equilibrium:  Harvard Announces Return of Early Action Admissions Program

"Harvard College announced the return of its non-binding early action admissions program, which was eliminated in 2007 due to concerns that it posed a disadvantage to low-income applicants.

"The announcement comes after the University of Virginia—which, along with Princeton, followed Harvard in deciding to eliminate early admissions programs in the fall of 2006—rolled out a new early action program in November.

"University President Drew G. Faust said in a statement that the return of early action, an admissions practice which Harvard had previously called unfair to students from disadvantaged backgrounds, is now “consistent with our bedrock commitment to access, affordability, and excellence.”

"The program will return this fall for the class of 2016.

"Dean of the Faculty of Arts and Sciences Michael D. Smith said in the same statement that offering an accelerated decision cycle for interested applicants would increase Harvard’s potential to attract top-caliber students. He said, “We looked carefully at trends in Harvard admissions these past years and saw that many highly talented students, including some of the best-prepared low-income and underrepresented minority students, were choosing programs with an early-action option, and therefore were missing out on the opportunity to consider Harvard.”

*****************************

The NY Times picks up the story: Harvard and Princeton Restore Early Admission

"Harvard and Princeton each announced yesterday that they would revive their early-admission programs, allowing high school seniors who apply by next Nov. 15 to get a decision by Dec. 15 without having to promise to attend the college if admitted.

"In September 2006, when both universities decided to eliminate early admissions for those starting college in 2008, Harvard and Princeton said they wanted to start a trend that would help even the playing field between wealthy applicants and those who needed to compare financial-aid offers from different colleges. But only the University of Virginia followed their lead — and it announced last year that it would reinstate early admissions.

“In eliminating our early program four years ago, we hoped other colleges and universities would do the same, and they haven’t,” said Shirley M. Tilghman, Princeton’s president. “One consequence is that some students who really want to make their college decision as early as possible in their senior year apply to other schools early, even if their first choice is Princeton.”

Meanwhile, with the economic downturn, a growing number of applicants sought early admission, leading the universities who had abandoned their programs to lose out on some top students.

“The very people we were targeting, people from modest economic backgrounds, were sent into a high state of anxiety and uncertainty by the economy and it reached the point where, this past year, record numbers of people were applying early,” said William R. Fitzsimmons, Harvard’s dean of admissions. “At many high schools it was very common to have 60, 70, 80 percent of the students applying early, and we heard rumors that in some cases, it went up to 100 percent.”
...
"According to David Hawkins, director of public policy and research at the National Association for College Admission Counseling, about a quarter of four-year colleges offer early decisions, whether through nonbinding early action or binding early decision.

“Particularly at these institutions with these highly motivated students, the desire for some kind of early decision is not likely to abate,” Mr. Hawkins said. “There is anxiety around the college admissions process, and a bird in the hand is worth two in the bush.”

"Few colleges — Stanford and Yale among them — offer the kind of single-choice, nonbinding early-action program that Harvard and Princeton will use, in which students may apply early to only one college.

“A single-choice early-action plan lets students tell us we’re their first choice, so we get a start on building the class,” said Janet L. Rapelye, Princeton’s dean of admission. “At the same time, it allows them to apply to other schools, and for students who need a generous financial aid package, gives them freedom to compare, so it’s a win-win for them.”

**********

Note that "single choice early action" requires that a student apply to no more than one plan early, so it is a signaling device rather than (also) a binding commitment (as binding early decision plans are).

***********
The Globe picks up the story:

"Harvard professor Richard Zeckhauser, coauthor of the book “The Early Admissions Game,’’ said yesterday that the university was bound to back away from the abolition of early admissions when it became clear that competitors were not following suit.


“Having Harvard and Princeton get rid of early admissions and having our principal competitors retain it is the equivalent of unilateral disarmament,’’ Zeckhauser said. “There is too much of a disadvantage of being just one of two or three schools among the elite schools not to offer a program that all the other schools offer.’’

...
"In the past, students who applied early to Princeton and the University of Virginia were obligated to attend if admitted. Under their renewed early admissions programs, admitted students would no longer be bound to the universities.
"Yale and Stanford also have nonbinding early admissions programs. But early applicants admitted to Cornell, Columbia, Dartmouth, Brown, and the University of Pennsylvania must promise to attend.

"Some college counselors welcomed Harvard’s and Princeton’s decisions, since more students are seeking early admissions options. Nearly a third of the senior class at Newton North High School had applied to a college by Nov. 1, said Brad MacGowan, a college counselor.
“With all the pressure and the uncertainty around college admissions, applying early gives them a little control,’’ said MacGowan. “They like the idea they can let a college know that it is their top choice.’’

Thursday, February 24, 2011

The Justice Department will no longer defend the Defense of Marriage Act

Same sex marriages in states where they are legal, like Massachusetts, will no longer automatically be opposed by the federal government as various challenges make their way through the courts.
Obama Orders End to Defense of Federal Gay Marriage Law

"President Obama, in a major legal policy shift, has directed the Justice Department to stop defending the Defense of Marriage Act — the 1996 law that bars federal recognition of same-sex marriages — against lawsuits challenging it as unconstitutional.

"Attorney General Eric H. Holder Jr. sent a letter to Congress on Wednesday saying that the Justice Department will now take the position in court that the act should be struck down as a violation of same-sex couples’ rights to equal protection under the law.

“The president and I have concluded that classifications based on sexual orientation warrant heightened scrutiny and that, as applied to same-sex couples legally married under state law,” a crucial provision of the act is unconstitutional, Mr. Holder wrote.

"The move is sure to be welcomed by gay-rights advocates, who had often criticized Mr. Obama for moving too slowly in his first two years in office to address issues that concern them. Coming after the administration successfully pushed late last year for repeal of the military’s ban on gay men and lesbians serving openly, the change of policy on the marriage law could intensify the long-running political and ideological clash over same-sex marriage as the 2012 presidential campaign approaches.

"While Mr. Obama has long argued that the Defense of Marriage Act is bad policy and has urged Congress to repeal it, his administration has also sent Justice Department lawyers into court to defend the statute’s constitutionality.

"The new position will require the administration to file new briefs in such litigation, including a major case now pending before the United States Court of Appeals for the First Circuit, in Boston."

Wednesday, February 23, 2011

Tourism-crime equilibrium in Paradise

"It is best to not leave anything of value in your rental car when parking in remote locations or at marked public beach accesses. Leave your car unlocked so thieves do not need to break the windows to discover there is nothing inside worth stealing."

That is the sensible, equilibrium advice to tourists on the (low crime)  island of Providenciales in Turks and Caicos Islands, where I recently had the opportunity to spend a week contemplating tourism as a development strategy for Caribbean nations. Here's a sign in three languages (the middle one is Creole) alerting crooks to watch out. (Creole looks sort of like French if you squint at it, and seems not to have a passive voice like the other two--the French parts says something like "everyone who sees ... something not good, immediately call the police"



The islanders discovered tourists (and Europe) in 1492 when Columbus landed.  The islanders are called "belongers," e.g. when you come through immigration there are lines for "belongers and residents" and other lines for visitors. Most belongers are descended from African slaves who worked the salt pans and cotton plantations of an earlier economy.




Looks like a great place for a satellite university campus...

Tuesday, February 22, 2011

NYC school choice--cost overruns

David Chen in the NY Times has an article on cost overruns for the new school choice system which includes the high school choice system that Atila Abdulkadiroglu, Parag Pathak, and I helped design. (This is a good place to point out that we did our work pro bono--we didn't charge a penny. What we did get was the relevant choice data and the freedom to use it when we published papers based on our work.) More on our collaboration with NYC Dept of Ed, and our interaction with one of their software vendors, after the Times story, at which point I'll also draw some lessons about software vendors for school districts interested in designing better school choice systems. The article makes clear that the new high school choice system in NYC is viewed as a great success, but that the city had big problems with its software contractors.

Cost Overruns Found in Technology for Placement of High School Students

"For the last several years, the city’s Department of Education has boasted about its record of placing students in the high schools of their choice, thanks to a new computerized process. But if the ends were successful, the means were anything but, according to the city comptroller.

"In an audit released Thursday, the comptroller, John C. Liu, criticized the department’s handling of the finances of the computer system, which is modeled after a system that matches medical school graduates with residency programs.

"Instead of adhering to its original contract of $3.6 million for the system’s development, the audit found, the department spent $13.5 million. Then the original project was deemed insufficient and it had to be scrapped and the city had to spend an additional $9.4 million — and counting — for a new system.

"The gulf of more than $19 million between expected and projected costs reflected “poor planning” and raised concerns, the comptroller’s office said, about “similar cost overruns” for all technology projects.

"The city’s original contract was with Spherion, a company whose reputation was sullied in December when several of its consultants were indicted by federal prosecutors. The consultants were accused of concocting an $80 million corruption scheme related to another technological initiative, an automated payroll system called CityTime. The city hired a new vendor for the Education Department in 2008.

"In a letter to Cathleen P. Black, the schools chancellor, H. Tina Kim, the city’s deputy comptroller for audits, wrote, “Clearly, savings could have been achieved with better planning and coordination.”
...
"In response to the audit, city officials said that fast-moving changes in facets of education had necessitated upgrades — at additional costs — to the computer system. The program had to accommodate middle-school choices, prekindergarten admissions and programs for gifted elementary-school children.

"Jack Zarin-Rosenfeld, a spokesman for the Education Department, said: “Before this administration, we had a high school admissions system that was rife with political patronage and too often gamed by the well-connected, leaving students with the most need behind. Thanks to our policy changes and investments, we have greatly expanded equity and choice for all of our families, and provided more high-quality opportunities on a scale larger than any other city in the country.

"With the advent of mayoral control of the schools shortly after Mr. Bloomberg took office in 2002, the Education Department overhauled the nerve-wracking and lotterylike process by which students were admitted to high schools. In the past, students could select only five schools, but some students were admitted to more than one, leaving the city’s best students to mull over their options after applying. But under the new High School Application Processing System, students are allowed to list 12 choices, and are matched to just one school.

"For the 2010-11 school year, 52 percent of the roughly 80,000 high-school-bound students who applied were matched to their first choices; in 2004, by contrast, that figure was 33.6 percent.

"In 2005, Joel I. Klein, then the schools chancellor, praised the new system, saying “this process, frankly, was a long time quite broken.”

"The original contract was amended eight times between 2003 and 2008, adding almost $10 million in costs, chiefly to adjust to changes in school policies. And those amendments, according to Ms. Kim’s letter, “reflect poor planning” and “appear to be an admission that the changes that occurred in D.O.E. were not expected or considered” in developing the new system.

"By 2008, the city had concluded that it needed a new vendor to develop a new and more flexible technology system, and hired Vanguard Direct Inc., under a contract expiring in 2013. "

*********************************************

The story reminds me of how in 2003, when I was first contacted by Jeremy Lack at the New York City Department of Education and asked to design a choice process, the city had already contracted with Spherion to be its software provider. It quickly became apparent that Spherion's core competence was getting contracts with the city. There were a number of indications that they were going to be difficult to work with. Two incidents stand out in my memory.

First, Spherion had prepared a plan that called for programming lots of modules to knit together different aspects of school choice. I recall a conference call in which several Spherion people participated together with Jeremy Lack, me and Parag Pathak, in which Parag and I pointed out that the (deferred acceptance algorithm) architecture we proposed would require vastly less programming to accomplish than the original contract allowed for. One of the Spherion people pointed out that, in that case, a contract modification would have to be negotiated, at additional cost to the city.

Second, the way the project progressed is that, as we agreed on particular design elements, Parag and Atila would each program a version (in Matlab and Perl, respectively) that they would check against each other by running test problems, and the algorithm would be passed on to Spherion. At one point we asked Spherion how they were planning to check that their programming was accurate, and they replied that checking the software wasn't called for in the contract (and, besides, they explained, there was a logical inconsistency in the notion that you could check the accuracy of software, since you would have to design software to do that, and that software would have to be checked...). So Parag and Atila did the software checking too.

Of course we programmed only the fun stuff, the choice algorithm, and a delivered system has to have lots of data entry and processing software, so that preference lists can be entered by middle school guidance counselors, etc. Still, I'm staggered by the cost figures reported by the Times. It's hard to imagine that a gold plated system, with 100% profit margins for the contractors, couldn't have come in at 10% of the reported cost.

Part of the problem, I suspect, is that the contract with Spherion didn't give the software to NYC, but left it with Spherion which was supposed to run the match, which I think increased charges each year. When we subsequently helped Boston redesign its school choice algorithm (with Tayfun Sonmez now also playing a critical role on the team), we worked in a similar way, but Boston ended up owning the software and running the match itself. This is a better financial/ownership model.

Neil Dorosin, the NYC DOE official who had the hands-on responsibility for implementing the new high school match, subsequently left the DOE to form a non profit institute to help school districts implement choice plans, the Institute for Innovation in Public School Choice (IIPSC). Atila, Parag and I are on his Board. Building on his considerable NYC experience, Neil probably now knows as much as anyone about the details of building a school choice system, and how the parts fit together, based on his experience not only in NY but in school districts around the country with whom he's been in contact.


Here's a paper in which the NYC high school choice system is described in detail, along with some details of its performance:
Abdulkadiroglu, Atila , Parag A. Pathak, and Alvin E. Roth, "Strategy-proofness versus Efficiency in Matching with Indifferences: Redesigning the NYC High School Match,'' American Economic Review, 99, 5, Dec. 2009, pp1954-1978. And here are the AER links at which you can access the Appendix and Download the Data Software